業務プロセスの分解における情報連携表記方法の比較実験

Business processes are defined as functions and information relationships between functions in the phase of business requirement definition when enterprise information systems are developed. The function which is defined in the phase of business requirement definition is decomposed into the unit called a program or a module in the lower phase. The description method of the flow chart type such as DFD has been used for the visualization of the decomposition of function conventionally. In recent years, many enterprise information systems are improved by executing Business Process Re-engineering (BPR) or introducing Enterprise Resource Planning (ERP). In this case, the definition of the information relationships between functions is important. The examples utilizing the description method of the matrix type called G-RD are seen to visualize information relationships. Therefore, the comparative experiment is performed by system engineers to visualize the same business processes utilizing DFD and G-RD. In this experiment, system engineers decompose functions and visualize functions and information relationships between functions. And information relationships which are added or changed by the decomposition of functions are measured. As the result, it is proved that G-RD is able to have prevent omissions or errors of information relationships.